Condition before being touched

Clymer ATV Manual - Yamaha Raptor 700R
 

I’ve just bought one of these and came here looking for a service manual
Mine has an air cleaner that I don’t seem to be able to find, it has round ends with square tabs on them, any ideas?
 

Just picked up a 1989 Big Bear 350 for $250 CAD. Bike was running but lost crank and spark. They've installed a new coil, a couple relays, and installed a Ford starter solenoid in place of the original. Now it cranks but has no spark so they sold it to me. Does anyone have a wiring diagram for this bike so I can test some wiring. Also any ideas as to direction to head would be nice. Lots of things have been hacked together so I know it probably wont be to easy. The ignition switch was replaced with a toggle switch, I already mentioned the Ford solenoid which 1 of the small wires was not re-installed, and a diode or something was removed from the oil temp sensor wire. I'm sure I will find more so a diagram would be amazing.

Hey there,
The short of it: I'm getting a single click when I hit the start, and nothing else.
The long: I'm a new owner to a 94 Timberwolf. I inherited it with the understanding that it needed a battery. It started without the battery when jumped, so I know it does work. I got the appropriate battery, charged it, and its reading 12.7V. Installed it, and all I'm getting is that click. Cleaned the carburetor today and reinstalled under someones advice, but still nothing. I'm gonna take the battery in to autozone to get it checked, and I was going to head to the spark plug next. But like I say, I'm new to this. Thanks for any and all advice.

i have a 1993 timberwolf yamaha and the compression is good and lights work but for some reason the electricity is not going to the spark plug(s)! i got a friend to check it out and they said its no use but im not giving up! please help with this!